Following the latest PhotoshopCC update (22.3), using Windows 10 (latest), I can no longer use the save for web (legacy) at all. As soon as I click that choice I get a dialog box with only "The operation could not be completed". Tried resetting prefs and several fixes found in searching (simple regedit, increase RAM), but no change. Since this is not the first time this has appeared in Photoshop over the years (but the first time for me), I'm assuming something in the latest update to either PS or Windows10 is to blame.
Is there a fix I can try, or is this a "wait until the next update" sort of thing? I'm really hobbled by this, and would rather not go back to an earlier version of PS.